Politics

Republican and Democratic SuperPACs, empowered by the Supreme Court's Citizens United decision, can collect unlimited contributions from individuals, corporations and unions. Potter became a celebrity when he signed on as Stephen Colbert's lawyer and advised the satirical TV host on how to create his own SuperPAC.

GOP hopefuls sparred again during Wednesday night's debate in Arizona. It was the final debate before the Michigan and Arizona primaries next week and Super Tuesday on March 6. Host Michel Martin discusses the latest election developments with GOP strategist Ron Christie and Janice Crouse of Concerned Women for America.

A new report from a bipartisan group warns that with the exception of Ron Paul's plan, the GOP candidates' economic proposals would likely worsen the nation's debt problem. The Committee for a Responsible Federal Budget also says the candidates need to spell out specific cuts rather than offering vague targets.

President Obama's plan to overhaul the nation's corporate tax system would sharply cut the taxes that U.S. companies pay. But it would also eliminate many of the loopholes that help them pare down what they owe.

Members of the Saddlebrooke Republican Club outside Tucson gathered at NPR's request to watch the candidates, as they did for an earlier debate. Half the group had already voted by mail for next week's GOP primary, and they're split on who's the best candidate. But they all said they'll back whomever the party nominates.

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